By losing weight at a rate of 230g-0.9kg (0.5-2lb) a week, you’re more likely to maintain a healthy weight long term. For the best results, you need to combine a healthy diet with regular physical activity. For more information, see How do I choose a healthy weight loss plan?

Crash diets

Many diets:

radically restrict your daily calorie intake

miss out entire food groups

Diet plans like this are not recommended for weight loss and can make you feel unwell.